When I'm talking about his numbers, I'm not really considering RBIs as that's more of a result of those around him, or the number of times he gets caught stealing, I'm talking about his slash line. I think that's closer to where he ends up. I'm not sure that'd make him an All-Star in today's game with...all the talent there is out there at SS, that's a bit of a reach.
But I think he'll figure it out. Wathing him at Nashville, he was constantly grinding and getting better and I don't think that stops at 23 in his first taste of MLB.
This is off topic, but I also think Monasterio is going to be an outstanding utility player. I don't expect him to maintain anything close to ~290/.380, but he could drop 40 points and be VERY valuable. A natural SS who draws walks, good speed, very good defense. Hopefully he can maintain his level of play. Saw an old scouting report that said his floor was a good utility player and if he could hit for average, he could be an everyday SS(and we know that he can also play 2B).